CONTROLLING FILAMENTATION IN BROAD-AREA SEMICONDUCTOR-LASERS AND AMPLIFIERS

Citation
Jr. Marciante et Gp. Agrawal, CONTROLLING FILAMENTATION IN BROAD-AREA SEMICONDUCTOR-LASERS AND AMPLIFIERS, Applied physics letters, 69(5), 1996, pp. 593-595
Citations number
15
Categorie Soggetti
Physics, Applied
Journal title
ISSN journal
00036951
Volume
69
Issue
5
Year of publication
1996
Pages
593 - 595
Database
ISI
SICI code
0003-6951(1996)69:5<593:CFIBSA>2.0.ZU;2-L
Abstract
We show that with the introduction of a new pair of epitaxial layers, sandwiched between the active and cladding regions; self-defocusing ca a play an important role in stabilizing the lateral mode in broad-area semiconductor lasers and amplifiers. Under certain conditions, it can be used to eliminate filamentation and provide a nearly flat mode pro file by adjusting the band gap of the new self-defocusing layers. We d iscuss the use of a strained multiple-quantum-well laser for producing such a stable lateral mode. (C) 1996 American Institute of Physics.